package com.fable.common.handler;

import cn.hutool.json.JSONUtil;
import com.fable.common.utils.JwtUtils;
import com.fable.common.vo.ResultVO;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.authentication.logout.LogoutSuccessHandler;
import org.springframework.security.web.authentication.logout.SecurityContextLogoutHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

@Component
public class JwtLogoutSuccessHandler implements LogoutSuccessHandler {

    @Autowired
    JwtUtils jwtUtils;

    @Override
    public void onLogoutSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException {

        if (authentication != null) {
            new SecurityContextLogoutHandler().logout(request, response, authentication);
        }
        response.setContentType("application/json;charset=UTF-8");

        response.setHeader(jwtUtils.getHeader(), "");
        PrintWriter out=response.getWriter();
        out.write(new ObjectMapper().writeValueAsString(ResultVO.okResult()));
        out.flush();
        out.close();
    }
}